quizcircularagain_ General Physics_ 2023SU-PHYS-004A-101

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Bergen Community College *

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PHY 222

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Physics

Date

Feb 20, 2024

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pdf

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10

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7/25/23, 1:11 PM quizcircularagain: General Physics: 2023SU-PHYS-004A-101 https://sjeccd.instructure.com/courses/37200/quizzes/244103 1/10 quizcircularagain Due Aug 2 at 11:59pm Points 28 Questions 15 Available Jun 19 at 12am - Aug 2 at 11:59pm Time Limit None Allowed Attempts 2 Instructions Attempt History Attempt Time Score LATEST Attempt 1 310 minutes 21 out of 28 Answers will be shown after your last attempt Score for this attempt: 21 out of 28 Submitted Jul 25 at 1:11pm This attempt took 310 minutes. 2 attempts 50 mins Take the Quiz Again 2 / 2 pts Question 1 A uniform cylinder of radius R , mass M , and length L rotates freely about a horizontal axis parallel and tangent to the cylinder, as shown below. The moment of inertia of the cylinder about this axis is .
7/25/23, 1:11 PM quizcircularagain: General Physics: 2023SU-PHYS-004A-101 https://sjeccd.instructure.com/courses/37200/quizzes/244103 2/10 . MR . 2 . . 0 / 2 pts Question 2 Incorrect Incorrect If a dense, 20.0-kg object is falling in air at half its terminal velocity, what is the drag force on the object at this moment? 24.5 N 49.0 N 69.3 N 98.0 N 139 N 1 / 1 pts Question 3 Exhibit 10-1 The figure below shows a graph of angular velocity versus time for a woman bicycling around a circular track.
7/25/23, 1:11 PM quizcircularagain: General Physics: 2023SU-PHYS-004A-101 https://sjeccd.instructure.com/courses/37200/quizzes/244103 3/10 Use this exhibit to answer the following question(s). Refer to Exhibit 10-1. What is her angular displacement (in rad) in the first 8 minutes? 0 π 4 π 8 π 16 π 2 / 2 pts Question 4 A wheel starts from rest and rotates with a constant angular acceleration about a fixed axis. It completes the first revolution 6.0 s after it started. How long after it started will the wheel complete the second revolution? 9.9 s 7.8 s 8.5 s 9.2 s 6.4 s
7/25/23, 1:11 PM quizcircularagain: General Physics: 2023SU-PHYS-004A-101 https://sjeccd.instructure.com/courses/37200/quizzes/244103 4/10 0 / 2 pts Question 5 Incorrect Incorrect The graph below shows a plot of angular acceleration in rad/s versus time from t = 0 s to t = 8 s. The angular velocity at t = 0 s is , CCW. The angular velocity, ω , at t = 8 s is 2 , CW. , CCW. , CW. , CCW. , CW. 2 / 2 pts Question 6
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